Brake caliper with stepped friction plate return spring
By designing a stepped friction plate return spring, the problem of difficult arrangement in a narrow space was solved, achieving effective return of the friction plate and avoiding interference with the motor, thus improving the return effect and space utilization.
Patent Information
- Application Number
- CN202520738410.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-04-18
AI Technical Summary
Existing friction plate return springs are difficult to arrange in confined spaces, cannot meet the installation requirements of electronic brake calipers, and have poor return performance.
Design a return spring with stepped friction plates. By setting multiple bends and limiting sections on the bracket, the return spring can be effectively arranged in a limited space and the return capability can be enhanced. This avoids motor offset interference and provides timely warning of return failure through the limiting sections.
This technology enables effective return of the friction pads within a confined space, reducing vehicle drag, improving return performance, avoiding motor interference, ensuring bracket strength, and maximizing space utilization.
Smart Images
Figure CN223814280U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a brake caliper, in particular to a brake caliper with stepped friction plate return spring. BACKGROUND
[0002] The friction plate return spring plays a vital role in the braking system, which acts on the friction plate in the disc brake, and when the brake is released, the return spring can quickly separate the friction plate and the disc so that the wheel can rotate smoothly. The current friction plate return spring is mainly arranged on both sides of the steel back, close to the spring piece groove, but this return spring needs a specific installation space and positioning plane, which makes some electronic brake calipers with narrow space unable to use this return spring. SUMMARY
[0003] In view of the technical problems in the background art, the utility model aims to provide a brake caliper with stepped friction plate return spring, which can be arranged in a narrow space and has good return effect.
[0004] To solve the above technical problems, the utility model adopts the following technical scheme: the brake caliper with stepped friction plate return spring, comprising a bracket, a motor, a friction plate assembly and a return spring, the bracket has a first abutting surface, the motor is installed on the bracket, the friction plate assembly is slidably arranged on the bracket, one end of the return spring is provided with a first bending part, the first bending part abuts against the abutting surface, the other end of the return spring is riveted with the friction plate assembly, and the return spring has a second bending part, wherein the friction plate assembly is drivingly connected with the motor through gear meshing, the bracket further has a table surface, an installation space is formed between the table surface and the lower surface of the motor, the return spring is riveted with the friction plate assembly through the installation space, the return spring further has a third bending part and a fourth bending part, the second bending part, the third bending part and the fourth bending part are located in the installation space, and the return spring as a whole has an M shape.
[0005] In this scheme, the third bending part and the fourth bending part are designed to lengthen the distance between the second bending part and the motor in the limited installation space, avoid interference, adapt to the motor offset caused by gear meshing, and effectively improve the return ability of the return spring.
[0006] Preferably, a limiting section is connected between the third bending part and the fourth bending part, and the limiting section cooperates with the table surface.
[0007] In this scheme, the limiting section abuts against the table surface, so that the return spring cannot continue to move, the further sliding of the friction plate assembly is limited, and the user can be timely warned before the return spring fails.
[0008] The utility model discloses the beneficial effect is, return spring has guaranteed the space arrangement rationality while improving the return effect of friction plate, reduces the car's to stagnate force and reaches the effect of low to stagnate, can effectively avoid MGU and guarantee the support strength, reaches the space utilization maximization design. BRIEF DESCRIPTION OF DRAWINGS
[0009] The utility model discloses the implementation and the related details and working principle of example of embodiment of the utility model are described below in conjunction with the drawings.
[0010] Fig. 1 It is the structural schematic diagram of the utility model.
[0011] Fig. 2 It is the three-dimensional structural schematic diagram of return spring in the utility model.
[0012] In the drawing: 1, support, 2, motor, 3, friction plate assembly, 4, return spring, 5, first bending part, 6, second bending part, 7, third bending part, 8, fourth bending part, 9, limiting section. DETAILED DESCRIPTION
[0013] The technical scheme in the utility model example will be described clearly and completely below in conjunction with the drawings in the utility model example; Obviously, the described example is only a part of the embodiment of the utility model, not all the embodiment, based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making the creative labor belong to the range of protection of the utility model.
[0014] In the description of the present application, it is understood that the orientation or position relationship indicated by the terms "upper", "lower" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application.
[0015] In the description of the present application, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.
[0016] Referring to the drawings Figs. 1-2The brake caliper with the stepped friction plate return spring in the embodiment of the present embodiment comprises a bracket 1, a motor 2, a friction plate assembly 3 and a return spring 4, the bracket 1 has a first abutting surface, the motor 2 is installed on the bracket 1, the friction plate assembly 3 is slidably arranged on the bracket 1, one end of the return spring 4 is provided with a first bending part 5, the first bending part 5 abuts against the abutting surface, the other end of the return spring 4 is riveted with the friction plate assembly 3, and the return spring 4 has a second bending part 6.
[0017] The friction plate assembly 3 is in transmission connection with the motor 2 through gear engagement, the bracket 1 further has a table surface, an installation space is formed between the table surface and a lower surface of the motor 2, the return spring 4 is riveted with the friction plate assembly 3 through the installation space, the return spring 4 further has a third bending part 7 and a fourth bending part 8, the second bending part 6, the third bending part 7 and the fourth bending part 8 are located in the installation space, the return spring 4 is in an M shape as a whole, a limiting section 9 is connected between the third bending part 7 and the fourth bending part 8, and the limiting section 9 cooperates with the table surface.
[0018] In the present embodiment, in a non-working state, the return spring 4 is riveted on the steel back of the friction plate assembly 3 and cooperates with the bracket 1, when service braking starts, brake fluid is transmitted to the caliper assembly through a master cylinder and a pipeline, a piston in the caliper assembly pushes the friction plate assembly 3 to contact a brake disc under the action of hydraulic pressure, so that braking force is generated. After braking, the return spring 4 helps the friction plate to quickly separate from the brake disc, wherein the third bending part 7 and the fourth bending part 8 improve the return effect of the return spring 4, and the limiting section 9 and the table surface cooperate to timely warn the user before the return spring 4 fails.
[0019] The above is the preferred embodiment of the present application, it should be pointed out that the protection scope of the present application is not limited to this. For those skilled in the art, without departing from the technical range disclosed in the present application, some improvements and decorations or equivalent replacements can be made under the premise of the same inventive concept, which is also regarded as the protection scope of the present application.
Claims
1. A brake caliper with stepped friction plate return spring, comprising a bracket (1) having a first abutting surface; a motor (2) mounted on the bracket (1); a friction plate assembly (3) slidingly arranged on the bracket (1); a return spring (4) having a first bending portion (5) at one end, the first bending portion (5) abutting against the abutting surface, the other end of the return spring (4) riveted to the friction plate assembly (3), the return spring (4) having a second bending portion (6); characterized in that: the friction plate assembly (3) is drivingly connected with the motor (2) through gear engagement; the bracket (1) further has a table surface, and an installation space is formed between the table surface and the lower surface of the motor (2); the return spring (4) is riveted to the friction plate assembly (3) through the installation space, the return spring (4) further has a third bending portion (7) and a fourth bending portion (8), the second bending portion (6), the third bending portion (7) and the fourth bending portion (8) are located in the installation space, and the return spring (4) as a whole has an M shape.
2. A brake caliper with a stepped friction plate return spring as claimed in claim 1, characterized in that: a limiting section (9) is connected between the third bending portion (7) and the fourth bending portion (8), and the limiting section (9) cooperates with the table surface.